PPSC CE Quiz 2

The single grained structure is a characteristic of

A 5m thick clay layer underlain by sand is subjected to a surcharge of 25 kN/m². The water table exists at a depth of 3m from the top and the capillary zone extends to 1m above the water table. Find the effective stress at 2.5m depth from the ground level.
Given G=2.73 and e=0.7 where the symbols have their usual meanings.

Effective stress at a point in a soil layer will increase due to:

The soil structure, having comparatively loose stable structure is

What will be the maximum capillary tension for a tube of 0.15 mm in diameter at 20°C

There is a 4m thick sand Layer. The water table is 3m below the top surface. The unit weight of sand above water table is 17 kN/m³. Calculate effective stress at section X-X as shown in figure. Assume a capillary rise of 1 m above the water table.

Take γ_{sat, sand (cap. Saturated}) = 20 KN/m³